Fast Brown Base N
Fast Brown Base N provides complex brown shades in azo dyeing for leather, as an amino-phenol derivative. HTS 2922.29.2600 applies to this fast color base.
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• Certify no enzyme impurities excluding Chapter 29
Related Products under HTS 2922.29.26.00
Fast Red Base B
Fast Red Base B is a chemically defined amino-phenol derivative used as a fast color base in the production of azo dyes, providing stable red hues resistant to light and washing. It falls under HTS 2922.29.2600 as an oxygen-function amino-compound specifically classified as a fast color base, meeting Chapter 29 requirements for separate organic compounds used in dye manufacturing.
Fast Blue Base RS
Fast Blue Base RS is an amino-naphthol ether compound serving as a diazo component for brilliant, lightfast blue dyes in textile printing. Classified under HTS 2922.29.2600 as a fast color base, it is a separate chemically defined organic compound with oxygen-function amino groups, aligning with Chapter 29 heading provisions.
Fast Yellow Base GG
Fast Yellow Base GG, an amino-phenol salt, acts as a stable base for developing yellow azo dyes with excellent fastness properties in leather and paper applications. It qualifies for HTS 2922.29.2600 as a fast color base salt of oxygen-function amino-compounds, per Chapter 29 note on salts classification.
Fast Scarlet Base R
Fast Scarlet Base R is a chemically pure amino-naphthol used in coupling reactions to produce scarlet dyes with superior wash fastness for cotton fabrics. Under HTS 2922.29.2600, it is specified as a fast color base, a separate organic compound fitting Chapter 29's scope for dye intermediates.
Fast Black Base N
Fast Black Base N, a sulfonated amino-phenol ether, functions as a diazotizable base for deep black azo dyes in wool dyeing with high light stability. It is classified in HTS 2922.29.2600 as a fast color base, including sulfonated derivatives per Chapter 29 additional notes.
Fast Green Base B
Fast Green Base B is an oxygen-function amino-naphthol salt optimized for green azo dye synthesis in synthetic fiber printing. HTS 2922.29.2600 covers it as a fast color base, a salt thereof fitting the heading's scope for chemically defined compounds.